CN108888211A - A kind of method for heating and controlling and device of dish-washing machine - Google Patents
A kind of method for heating and controlling and device of dish-washing machine Download PDFInfo
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- CN108888211A CN108888211A CN201810760933.9A CN201810760933A CN108888211A CN 108888211 A CN108888211 A CN 108888211A CN 201810760933 A CN201810760933 A CN 201810760933A CN 108888211 A CN108888211 A CN 108888211A
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L15/00—Washing or rinsing machines for crockery or tableware
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L15/00—Washing or rinsing machines for crockery or tableware
- A47L15/42—Details
- A47L15/4285—Water-heater arrangements
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L15/00—Washing or rinsing machines for crockery or tableware
- A47L15/42—Details
- A47L15/4287—Temperature measuring or regulating arrangements
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L15/00—Washing or rinsing machines for crockery or tableware
- A47L15/42—Details
- A47L15/46—Devices for the automatic control of the different phases of cleaning ; Controlling devices
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B40/00—Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers
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- Washing And Drying Of Tableware (AREA)
Abstract
The invention discloses a kind of method for heating and controlling of dish-washing machine and device, method includes step：S1, water inlet temperature, outlet temperature, current water flow, the heating efficiency of the operating power of heater and heater for obtaining dish-washing machine respectively；S2, the required energy of heating is calculated according to the water inlet temperature, outlet temperature and current water flow；Power needed for heating is calculated in the heating efficiency of S3, the energy according to needed for the heating and heater；The duty cycle of heater is adjusted in the operating power of S4, the power according to needed for the heating and heater.Required power is heated by calculating, then the duty cycle of heater is adjusted according to the operating power of power and heater needed for heating, the water in dish-washing machine can be evenly heated, heating efficiency is improved, avoids energy waste.
Description
Technical field
The present invention relates to dishwashing detergent control technology field more particularly to the method for heating and controlling and dress of a kind of dish-washing machine
It sets.
Background technique
With the raising of people 's material life, there are various household electrical appliances, dish-washing machine is one of.City at present
Dish-washing machine on face mostly uses two ways to be heated for washing the dishes with water greatly：One is directly using hot water tap to washing the dishes
Add water in machine, the cold water in evacuated tube is needed when needing by external water heater, and heating water, will cause the wave of water resource
Take, poor in timeliness；Another kind is to increase high-power heating disk outside washing dish to heat the water in dish-washing machine, this to add
The heating efficiency of hot method is low, will also result in the waste of water resource.High-power heating disk heating is main using relay and controllable
Two kinds of the fine wave of silicon outputs, relay output power grid is dry to scratch small, but is not suitable for frequently switching on, so that the temperature fluctuation of output is big,
Since electric arc can be generated when switch, cause its service life limited；Silicon-controlled fine wave output switch is fine since heating power is big
Harmonic wave caused by wave scratches very greatly the dry of power grid, can seriously affect power grid quality.
In addition, existing dish-washing machine needs to be separately provided a set of heating device when carrying out high-temperature sterilization by steam, this
Kind heating device is controlled using simple temperature detect switch (TDS), generates the low efficiency of steam, and heating device easily generates water
Dirt, it is difficult to clean, it usually needs removed using special medicament.
Summary of the invention
The technical problem to be solved by the present invention is to：The method for heating and controlling and device of a kind of dish-washing machine are provided, heated
It is high-efficient, the energy can be greatlyd save.
In order to solve the above-mentioned technical problem, the technical solution adopted by the present invention is：
A kind of method for heating and controlling of dish-washing machine, including step：
S1, obtain respectively the water inlet temperature of dish-washing machine, outlet temperature, current water flow, heater operating power
With the heating efficiency of heater；
S2, the required energy of heating is calculated according to the water inlet temperature, outlet temperature and current water flow；
Power needed for heating is calculated in the heating efficiency of S3, the energy according to needed for the heating and heater；
The duty cycle of heater is adjusted in the operating power of S4, the power according to needed for the heating and heater.
Another technical solution that the present invention uses for：
A kind of heating control apparatus of dish-washing machine, including processor, memory and storage on a memory and can located
The computer program run on reason device, the processor realize following steps when executing the computer program：
S1, obtain respectively the water inlet temperature of dish-washing machine, outlet temperature, current water flow, heater operating power
With the heating efficiency of heater；
S2, the required energy of heating is calculated according to the water inlet temperature, outlet temperature and current water flow；
Power needed for heating is calculated in the heating efficiency of S3, the energy according to needed for the heating and heater；
The duty cycle of heater is adjusted in the operating power of S4, the power according to needed for the heating and heater.
The beneficial effects of the present invention are：Required power is heated by calculating, then according to power and heating needed for heating
The duty cycle of heater is adjusted in the operating power of device, can be evenly heated to the water in dish-washing machine, improves and adds
The thermal efficiency avoids energy waste.Heating control apparatus of the invention can not have to additional increase with dish-washing machine integrated design
Add high-power heating disk, avoids the waste of water resource.
Detailed description of the invention
Fig. 1 is the flow chart of the method for heating and controlling of the dish-washing machine of the embodiment of the present invention one；
Fig. 2 is the structural schematic diagram of the heating control apparatus of the dish-washing machine of the embodiment of the present invention two.
Label declaration：
1, heating control apparatus；11, processor；12, memory.
Specific embodiment
To explain the technical content, the achieved purpose and the effect of the present invention in detail, below in conjunction with embodiment and cooperate attached
Figure is explained.
The design of most critical of the present invention is：According to the operating power of power and heater needed for heating to the work of heater
It is adjusted, the water in dish-washing machine can be evenly heated as the period, improve heating efficiency, avoid energy waste.
Please refer to Fig. 1, a kind of method for heating and controlling of dish-washing machine, including step：
S1, obtain respectively the water inlet temperature of dish-washing machine, outlet temperature, current water flow, heater operating power
With the heating efficiency of heater；
S2, the required energy of heating is calculated according to the water inlet temperature, outlet temperature and current water flow；
Power needed for heating is calculated in the heating efficiency of S3, the energy according to needed for the heating and heater；
The duty cycle of heater is adjusted in the operating power of S4, the power according to needed for the heating and heater.
As can be seen from the above description, the beneficial effects of the present invention are：Required power is heated by calculating, then according to heating
The duty cycle of heater is adjusted in the operating power of required power and heater, can carry out to the water in dish-washing machine equal
Even heating improves heating efficiency, avoids energy waste.
It further, further include step after the step S2：
Energy needed for water vapour is calculated according to the heat of vaporization of energy needed for the heating and water；
The water vapor amount in the unit time is calculated according to the operating power of energy needed for the water vapour and heater；
The umber of pulse in the unit time is calculated according to the current water flow and the water vapor amount in the unit time；
The duty cycle for adding water water pump is calculated according to the umber of pulse in the unit time.
Seen from the above description, hot water and steam heating use the same calandria, after having generated hot water, generate steaming
Vapour makes full use of thermal energy, can effectively improve heating efficiency；Steam heating is carried out by the way of pulse, it is possible to reduce energy consumption,
And the duty cycle for adding water water pump is calculated according to the umber of pulse in the unit time, can avoid the waste of water resource,
Greatly save the energy.
Further, further include：Controlling current water flow is zero, makes heater the first preset time of work, then controls
Current water flow is greater than zero, makes to add the second preset time of water pump working.
Seen from the above description, dry combustion method can also be carried out to heat-generating pipe by heater, utilizes the heat of heat-generating pipe and scale
The coefficient of expansion is different, so that scale is split into fritter and falls off, water pump continuous work is then allowed again for a period of time, by the water in heat-generating pipe
Dirt is gone out, and can repeatedly repeatedly be removed the scale in heating tube clean.
Further, the step S4 is specially：
Obtain the theoretical turn-on cycle of heater；
Duty ratio is calculated according to the operating power of power needed for the heating and heater；
It is calculated according to the theoretical turn-on cycle and duty ratio and is actually turned on the period.
It seen from the above description, can be big in the case where guaranteeing hot water temperature by the way that heater is intermittently connected
It is big to save electric energy.
Referring to figure 2., another technical solution of the present invention is：
A kind of heating control apparatus 1 of dish-washing machine, including processor 11, memory 12 and be stored on memory 12 simultaneously
The computer program that can be run on processor 11, the processor 11 realize following steps when executing the computer program：
S1, obtain respectively the water inlet temperature of dish-washing machine, outlet temperature, current water flow, heater operating power
With the heating efficiency of heater；
S2, the required energy of heating is calculated according to the water inlet temperature, outlet temperature and current water flow；
Power needed for heating is calculated in the heating efficiency of S3, the energy according to needed for the heating and heater；
The duty cycle of heater is adjusted in the operating power of S4, the power according to needed for the heating and heater.
Seen from the above description, heating control apparatus of the invention can not have to additional increase with dish-washing machine integrated design
Add high-power heating disk, avoids the waste of water resource.
Further, after the step S2, following step is also realized when the processor 11 executes the computer program
Suddenly：
Energy needed for water vapour is calculated according to the heat of vaporization of energy needed for the heating and water；
The water vapor amount in the unit time is calculated according to the operating power of energy needed for the water vapour and heater；
The umber of pulse in the unit time is calculated according to the current water flow and the water vapor amount in the unit time；
The duty cycle for adding water water pump is calculated according to the umber of pulse in the unit time.
Further, following steps are also realized when the processor 11 executes the computer program：
Controlling current water flow is zero, makes heater the first preset time of work, then controls current water flow and be greater than zero,
Make to add the second preset time of water pump working.
Further, the step S4 is specially：
Obtain the theoretical turn-on cycle of heater；
Duty ratio is calculated according to the operating power of power needed for the heating and heater；
It is calculated according to the theoretical turn-on cycle and duty ratio and is actually turned on the period.
Fig. 1 is please referred to, the embodiment of the present invention one is：
A kind of method for heating and controlling of dish-washing machine, includes the following steps：
S1, obtain respectively the water inlet temperature of dish-washing machine, outlet temperature, current water flow, heater operating power
With the heating efficiency of heater.Water inlet temperature and outlet temperature pass through NTC thermistor and are detected, it is assumed that water inlet
Temperature is 20 DEG C, and outlet temperature is 70 DEG C, and the operating power of heater is 3kW, and current water flow is 0.6L/min (0.01L/
S), the heating efficiency of heater is 90%, and the specific heat of water is 4.2kJ/ (kg DEG C).
S2, the required energy of heating is calculated according to the water inlet temperature, outlet temperature and current water flow.Tool
Body, energy needed for heating is calculated according to formula Q=CM △ T, wherein Q indicates that energy needed for heating, C indicate the specific heat of water, △ T
Indicate the temperature difference of outlet temperature and water inlet temperature, T=4.2 × 0.01 Q=CM △ × 50=2.1kJ.
Power needed for heating is calculated in the heating efficiency of S3, the energy according to needed for the heating and heater.Specifically,
Power needed for heating is calculated according to formula P=Q/t/ η, wherein P indicates that power needed for heating, Q indicate energy needed for heating, t table
Show heating time, η indicates the heating efficiency of heater, P=Q/t/ η=2.1/0.9=2.33kJ=2.33kWs requires to add
Power needed for the heating of hot device is 2.33kW.
The duty cycle of heater is adjusted in the operating power of S4, the power according to needed for the heating and heater.
Specific step S4 is specially：
S41, the theoretical turn-on cycle for obtaining heater.Assuming that heater 50 turn-on cycles per second.
Duty ratio is calculated in the operating power of S42, the power according to needed for the heating and heater.Duty ratio=heating
Operating power=2.33/3=0.777 of required power/heater.
S43, it is calculated according to the theoretical turn-on cycle and duty ratio and is actually turned on the period.It is actually turned on period=reason
By turn-on cycle × duty ratio=50 × 0.777=39, that is, being actually turned on the period is 39.
Current water flow is controlled by water pump, and water enters in the heater of dish-washing machine, and MCU pairs on main control board
The NTC thermistor of water inlet and water outlet carries out temperature detection, calculates in the unit time through the water flow of heater
Quality calculates power needed for heating, duty ratio D is then calculated.Output is a counting with a complete voltage cycle
Unit, n period are a calculating cycle, and output D is completely after waveforms, and others are not turned on, such voltage and current wave
Shape is completely the same, because calandria is purely resistive load, the power factor of complete machine is 1, and power needed for calculating heating leads to
It crosses and the power of heater is adjusted, to realize the instant heating function to water.
It further include step after the step S2 in the present embodiment：
Energy needed for water vapour is calculated in the heat of vaporization of S201, the energy according to needed for the heating and water.Water vapor heat
For 2260kJ/kg, it is assumed that the steam temperature of water outlet is 100 DEG C, then 1 kg of water becomes 100 DEG C of water vapour from 20 DEG C
Required heat is：4.2 × 1 × 80+2260 × 1=2596kJ.
The steam in the unit time is calculated in the operating power of S202, the energy according to needed for the water vapour and heater
The quality of change amount, the water that heater can vaporize each second is：3kWs/2596kWs=0.001156kg.
S203, the pulse in the unit time is calculated according to the current water flow and the water vapor amount in the unit time
Number.Umber of pulse=0.01L/0.001156=8.65 in unit time
S204, the duty cycle for adding water water pump is calculated according to the umber of pulse in the unit time.Add water water pump every
Work 1s, needs the 7.65s that stops working, can produce enough steam thus to guarantee the continuity of steam.
For the steam function of dish-washing machine by carrying out pulsed control to DC water pump, MCU passes through detection water inlet and water outlet
Mouthful vapor (steam) temperature, the heat generated in the unit time, which is calculated, so that how much water is become steam, with the quality of water divided by
The water of pulse pump each time, the umber of pulse in the available unit time, then umber of pulse was evenly distributed in the unit time,
The continuous impulse mode pumped in this way produces continuous water vapour.The water vapour of high temperature can be such that the bacterial component in pipeline drops
It is low, effectively inhibit the growth of bacterium.
In the present embodiment, further include：Controlling current water flow is zero, makes heater the first preset time of work, then controls
Current water flow is made greater than zero, makes to add the second preset time of water pump working.Heater enters scale removal mode at this time, water pump not
In the case where work, dry combustion method is carried out to the heating tube in heater, remaining water in heating tube is made to become water vapour.In heater
Middle setting temperature protective device, temperature protective device include temperature sensor and temperature detect switch (TDS), the temperature protective device in dry combustion method
It opens.Since scale is different with the thermal expansion coefficient of heat-generating pipe, scale can be made to split into fritter and fallen off, then allow water pump continuous again
It works one end time, the scale in heat-generating pipe is gone out, repeatedly several times, until being completely by the scale removing in heating tube
Only.The first preset time and the second preset time in the present embodiment can according to need and be configured.By the way of dry combustion method
Scale in heat-generating pipe is removed automatically, the heat conduction efficiency of heat-generating pipe can be improved.
Referring to figure 2., the embodiment of the present invention two is a kind of heating control apparatus of dish-washing machine, the method with embodiment one
It is corresponding.
A kind of heating control apparatus 1 of dish-washing machine as shown in Figure 2, including processor 11, memory 12 and be stored in
On memory 12 and the computer program that can run on processor 11, the processor 11 execute real when the computer program
Existing following steps：
S1, obtain respectively the water inlet temperature of dish-washing machine, outlet temperature, current water flow, heater operating power
With the heating efficiency of heater；
S2, the required energy of heating is calculated according to the water inlet temperature, outlet temperature and current water flow；
Power needed for heating is calculated in the heating efficiency of S3, the energy according to needed for the heating and heater；
The duty cycle of heater is adjusted in the operating power of S4, the power according to needed for the heating and heater.
Further, after the step S2, following step is also realized when the processor 11 executes the computer program
Suddenly：
Energy needed for water vapour is calculated according to the heat of vaporization of energy needed for the heating and water；
The water vapor amount in the unit time is calculated according to the operating power of energy needed for the water vapour and heater；
The umber of pulse in the unit time is calculated according to the current water flow and the water vapor amount in the unit time；
The duty cycle for adding water water pump is calculated according to the umber of pulse in the unit time.
Further, following steps are also realized when the processor 11 executes the computer program：
Controlling current water flow is zero, makes heater the first preset time of work, then controls current water flow and be greater than zero,
Make to add the second preset time of water pump working.
Further, the step S4 is specially：
Obtain the theoretical turn-on cycle of heater；
Duty ratio is calculated according to the operating power of power needed for the heating and heater；
It is calculated according to the theoretical turn-on cycle and duty ratio and is actually turned on the period.
In conclusion the method for heating and controlling and device of a kind of dish-washing machine provided by the invention, it can be in dish-washing machine
Water is evenly heated, and is improved heating efficiency, is avoided energy waste；Heating control apparatus can be with machine integrated set of washing the dishes
Meter does not have to additional increase high-power heating disk, avoids the waste of water resource.
The above description is only an embodiment of the present invention, is not intended to limit the scope of the invention, all to utilize this hair
Equivalents made by bright specification and accompanying drawing content are applied directly or indirectly in relevant technical field, similarly include
In scope of patent protection of the invention.
Claims (8)
1. a kind of method for heating and controlling of dish-washing machine, which is characterized in that including step：
S1, obtain respectively the water inlet temperature of dish-washing machine, outlet temperature, current water flow, heater operating power and add
The heating efficiency of hot device；
S2, the required energy of heating is calculated according to the water inlet temperature, outlet temperature and current water flow；
Power needed for heating is calculated in the heating efficiency of S3, the energy according to needed for the heating and heater；
The duty cycle of heater is adjusted in the operating power of S4, the power according to needed for the heating and heater.
2. the method for heating and controlling of dish-washing machine according to claim 1, which is characterized in that further include after the step S2
Step：
Energy needed for water vapour is calculated according to the heat of vaporization of energy needed for the heating and water；
The water vapor amount in the unit time is calculated according to the operating power of energy needed for the water vapour and heater；
The umber of pulse in the unit time is calculated according to the current water flow and the water vapor amount in the unit time；
The duty cycle for adding water water pump is calculated according to the umber of pulse in the unit time.
3. the method for heating and controlling of dish-washing machine according to claim 1, which is characterized in that further include：Control current water flow
Amount is zero, makes heater the first preset time of work, then controls current water flow greater than zero, makes plus water pump working second is pre-
If the time.
4. the method for heating and controlling of dish-washing machine according to claim 1, which is characterized in that the step S4 is specially：
Obtain the theoretical turn-on cycle of heater；
Duty ratio is calculated according to the operating power of power needed for the heating and heater；
It is calculated according to the theoretical turn-on cycle and duty ratio and is actually turned on the period.
5. a kind of heating control apparatus of dish-washing machine, including processor, memory and storage on a memory and can handled
The computer program run on device, which is characterized in that the processor realizes following steps when executing the computer program：
S1, obtain respectively the water inlet temperature of dish-washing machine, outlet temperature, current water flow, heater operating power and add
The heating efficiency of hot device；
S2, the required energy of heating is calculated according to the water inlet temperature, outlet temperature and current water flow；
Power needed for heating is calculated in the heating efficiency of S3, the energy according to needed for the heating and heater；
The duty cycle of heater is adjusted in the operating power of S4, the power according to needed for the heating and heater.
6. heating control apparatus according to claim 5, which is characterized in that after the step S2, the processor is held
Following steps are also realized when the row computer program：
Energy needed for water vapour is calculated according to the heat of vaporization of energy needed for the heating and water；
The water vapor amount in the unit time is calculated according to the operating power of energy needed for the water vapour and heater；
The umber of pulse in the unit time is calculated according to the current water flow and the water vapor amount in the unit time；
The duty cycle for adding water water pump is calculated according to the umber of pulse in the unit time.
7. heating control apparatus according to claim 5, which is characterized in that the processor executes the computer program
When also realize following steps：
Controlling current water flow is zero, makes heater the first preset time of work, then controls current water flow greater than zero, makes to add
The second preset time of water pump working.
8. heating control apparatus according to claim 5, which is characterized in that the step S4 is specially：
Obtain the theoretical turn-on cycle of heater；
Duty ratio is calculated according to the operating power of power needed for the heating and heater；
It is calculated according to the theoretical turn-on cycle and duty ratio and is actually turned on the period.
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| CN201810760933.9A CN108888211B (en) | 2018-07-12 | 2018-07-12 | Heating control method and device of dish washing machine |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113885615A (en) * | 2020-07-03 | 2022-01-04 | 九阳股份有限公司 | Control method for intermittent heating and cooking appliance |
| CN114306866A (en) * | 2021-12-29 | 2022-04-12 | 深圳普门科技股份有限公司 | Method and device for controlling respiratory humidification instrument, respiratory humidification instrument and storage medium |
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| CN106969489A (en) * | 2017-03-29 | 2017-07-21 | 厦门佳普乐电子科技有限公司 | A kind of instantaneously heated type heater |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113885615A (en) * | 2020-07-03 | 2022-01-04 | 九阳股份有限公司 | Control method for intermittent heating and cooking appliance |
| CN114306866A (en) * | 2021-12-29 | 2022-04-12 | 深圳普门科技股份有限公司 | Method and device for controlling respiratory humidification instrument, respiratory humidification instrument and storage medium |
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